That the Concentric Layers Within Ordovician Ooids Precipitated from Seawater

question 28

Multiple Choice

That the concentric layers within Ordovician ooids precipitated from seawater with a Mg:Ca ratio less than 2 is indicated by

• A) concentric layers of aragonite around a nucleus.
• B) elongate calcite crystals that radiate outward from the center.
• C) a nucleus that may have been a pellet or small shell fragment.
• D) spicules and other organic structures in the layers and nucleus.

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Definitions:

Psychoanalytic Perspective

A theory and approach to psychology and human behavior emphasizing unconscious motivations and early childhood experiences in shaping personality and behavior.

Lev Vygotsky

A Russian psychologist known for his work on cognitive development, particularly the sociocultural theory that development is influenced by social interactions.

Erik Erikson

A developmental psychologist and psychoanalyst known for his theory on the psychosocial development of humans.

Sigmund Freud

A pioneering neurologist and founder of psychoanalysis, known for his theories about the unconscious mind, developmental stages, and defense mechanisms.